Description

[curlx,curly,curlz,cav] = curl(X,Y,Z,U,V,W) computes
the curl (curlx, curly, curlz)
and angular velocity (cav) perpendicular to the
flow (in radians per time unit) of a 3-D vector field U, V, W.

The arrays X, Y, and Z,
which define the coordinates for U, V,
and W, must be monotonic, but do not need to be
uniformly spaced. X, Y, and Z must
have the same number of elements, as if produced by meshgrid.

[curlx,curly,curlz,cav] =
curl(U,V,W) assumes X, Y,
and Z are determined by the expression

[X Y Z] = meshgrid(1:n,1:m,1:p)

where [m,n,p] = size(U).

[curlz,cav]= curl(X,Y,U,V) computes
the curl z-component and the angular velocity perpendicular
to z (in radians per time unit) of a 2-D vector
field U, and V.

The arrays X and Y, which
define the coordinates for U and V,
must be monotonic, but do not need to be uniformly spaced. X and Y must
have the same number of elements, as if produced by meshgrid.

[curlz,cav]= curl(U,V) assumes X and Y are
determined by the expression